Three students measured the height of a lab table, each using a different meter stick. one student reported a height of 98 cm, another reported a height of 99 cm, and the last student reported a height of 70 cm. the most likely explanation for the difference in the reported heights is that one a. student improperly read the meter stick. b. meter stick was metal and the other meter stick was wood. c. student viewed the meter stick from a different angle. d. meter stick was constructed with nonstandard cm marks.

Option A, is correct

Explanation:

Out of three students, the reading observed by two students i.e 98 cm and 99 cm are precise to each other. The only outlier is the reading taken by third student i.e 70 cm.  

Hence, there are high chances of third student being wrong while noting down the reading on meter stick

If meter stick was of nonstandard size, then all the students must have observed varying values.  

Option A, is correct

answer: ice crystals in air

the water from the water body or another source of water gets evaporated as water vapor as an effect of heat on water. these water vapor rises in the upper layers of the earth atmosphere under high atmospheric pressure. the atmospheric pressure of these water molecules starts to decrease due to the effect of cold air. the invisible water vapor condenses into visible water droplets and ice crystals.these ice crystals and water droplets being less denser than the surrounding air floats on air as clouds.